Improvement in machines for making- cut nails



To all whom 'it may concern: f

@anni A Mire.

JACOB B..K1NGHAM,0F DoRcHizSTER,4 MASSACHUSETTS.

Laim Para No. 90,108, daad May 1s, 1869.

IMIPROVEMENT IN MACHINES I'OR'MAKING- CUT NAILS.

The Schedule referred to in theneLettera Patent and making partvof thesame.

Beit known that I, JAcoB 13.5KINGHAM, ofA Don chester, in the county ofNorfolk,and State of Massachusetts, haveiuventedcertain new and usefulImprovements in N ail-Machines; and l dci-hereby declare the followingtobe a full and exact description therer of, reference being had to theaccompanying drawings,

and to'the letters of reference marked thereon.

`To enableothers skilled in the4 art to make and use my invention, I.will proceed to describe its nature, construction, and use.- l

4The nature of my inventionconsists incertain improvements made upon anail-machine made by me, for which Letters Patent from the government ofthe United States were granted, October 11, 1864, and

nnmbered'44,637, said improvements relating to the method of holding`the ynail while the same is being headed. l Y y In the machine whichIhave already patented',` there ale twq knives inthe cutting-jaw, one ofwhichserves,

d after the nail has been cut,"as an' upper griper, and in while beingheaded. 4

In `my improved machine, the nail is held, while combination with "theother gripers, holds the nail' d being headed, by 'three gripers, soarranged as to bear equally upon the'four sides of the nail.

l f Drawings.` Figure l isaplan. -Figure is a perspective View of apart, the cutting-jaw, header, andlower knife being removed.

'Figure 3 is a perspective vertical section through the knives.

Figure 4': is a perspective view of the entire 'mal chine. .Y y Figure 5is an elevation showing` the action of the griping-dies.

The machine represented iu the drawings is peculiar d only in ai devicefor griping the nail, all the other parts `being identical with theordinary Reed nail-tool, and

.therefore do not require a detailed description.

1n my machine, I have three` gripingdies-one, N, fig. 3, stationary,situated immediately under thestal tional-y cutter Gr', and held in`position by set-screws in the stationary cutter-bed 0; the other two, Gand M, `figs. 2 and 3, being movable.

rBhe die 4M ispeculiar, that is, its end is rebated, so that it has ltwogriping-faces, a l), igsl and 3, and its motion is forward and downward.l

V'lhe lower griping-die, C", figs. 2 and 3, vibrates on the centre B",tigs."2.and 4, so that the gripng-end c vibrates from the positionlshown in.g..3, that is, under d, to a'position directly under thefaced. of the griping-die M. (See fig. 5.)

The gripng-die M is attached to the lever B B', figs. 2 and'3, whichswings upon vthe pivot 0', figs. 2 and 4, and is actuated by the cam E,on the main shaft of the machine.

The lower die G is attached to the lever 0 C', tig. f 3, which swingsupon the pivot B",g. 4, and is actuated by the cam D, on the main shaft.

`The operation of 'my machine mayl be set forth as follows: l

The nail is cut and passed down, being held by the nipper I in the usualmanner, until it comes in conftact with the face c of the lowergriping-die, said die l being in the position represented in g. 5.` Thenthe die M moves forward and downward, until the facesaI and b gripe thenail firmly, the faces c and 'd of the other gripingdies serving asbuttresses, so that the nail is iirmly held by a pressure which bearsequally upon the planes of its four sides.

While the nail is thus held, the Aheader moves forward and makes thehead, which being accomplished, the` face c'of the die C moves backwardunder d, shown in fig. 3, and the die M retires, thus leaving the nail,.which is now complete, to drop from the machine. f

By this arrangement and construction of dies, I

` have a machine which will run with all the rapidity of theV ordinarynail-machine, will clear itself perfectly, and will` make a nail with aperfectly square pyramidal shank, the nail thus produced being asperfect in shape l as the best hand-made nails, and being perfectlyadapted to supply the place of hand-made nails for boat-building, Snc.

My gripng and clearing-device, as above described, may be applied tothe' Blanchard nail-tool, if desirable, but vmy experiments seem to havedemonstrated, thatfor nail-making, the Reed machine is the best.

Having thus described my invention, I will now proceed to set forth myclaim.

What Iclaim as. my invention, and desire tolsecnre by Letters Patent ofthe United States, is-

The'combination of the rebated griper M, the vibrating griper C", andthe xed griper N, all arranged and operating as specied.

` Witnesses:

- A. HUN BERRY,

FRANK G. PARKER.

'JACOB B. KINGHAM.

